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Title: Numerical investigation of the flat band Bloch modes in a 2D photonic crystal with Dirac cones

Abstract

A numerical method combining complex-k band calculations and absorbing boundary conditions for Bloch waves is presented. We use this method to study photonic crystals with Dirac cones. We demonstrate that the photonic crystal behaves as a zero-index medium when excited at normal incidence, but that the zero-index behavior is lost at oblique incidence due to excitation of modes on the flat band. We also investigate the formation of monomodal and multimodal cavity resonances inside the photonic crystals, and the physical origins of their different line-shape features.

Authors:
 [1];  [1];  [2];  [1];  [3]
  1. Ames Laboratory, Ames, IA (United States)
  2. Chalmers University, Goteborg (Sweden)
  3. Ames Laboratory, Ames, IA (United States); Institute of Electronic Structure (IESL), Crete (Greece)
Publication Date:
Research Org.:
Ames Lab., Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1201627
Grant/Contract Number:  
AC02-07CH11358
Resource Type:
Accepted Manuscript
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 23; Journal Issue: 8; Journal ID: ISSN 1094-4087
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Zhang, Peng, Fietz, Chris, Tassin, Philippe, Koschny, Thomas, and Soukoulis, Costas M. Numerical investigation of the flat band Bloch modes in a 2D photonic crystal with Dirac cones. United States: N. p., 2015. Web. doi:10.1364/OE.23.010444.
Zhang, Peng, Fietz, Chris, Tassin, Philippe, Koschny, Thomas, & Soukoulis, Costas M. Numerical investigation of the flat band Bloch modes in a 2D photonic crystal with Dirac cones. United States. https://doi.org/10.1364/OE.23.010444
Zhang, Peng, Fietz, Chris, Tassin, Philippe, Koschny, Thomas, and Soukoulis, Costas M. Tue . "Numerical investigation of the flat band Bloch modes in a 2D photonic crystal with Dirac cones". United States. https://doi.org/10.1364/OE.23.010444. https://www.osti.gov/servlets/purl/1201627.
@article{osti_1201627,
title = {Numerical investigation of the flat band Bloch modes in a 2D photonic crystal with Dirac cones},
author = {Zhang, Peng and Fietz, Chris and Tassin, Philippe and Koschny, Thomas and Soukoulis, Costas M.},
abstractNote = {A numerical method combining complex-k band calculations and absorbing boundary conditions for Bloch waves is presented. We use this method to study photonic crystals with Dirac cones. We demonstrate that the photonic crystal behaves as a zero-index medium when excited at normal incidence, but that the zero-index behavior is lost at oblique incidence due to excitation of modes on the flat band. We also investigate the formation of monomodal and multimodal cavity resonances inside the photonic crystals, and the physical origins of their different line-shape features.},
doi = {10.1364/OE.23.010444},
journal = {Optics Express},
number = 8,
volume = 23,
place = {United States},
year = {Tue Apr 14 00:00:00 EDT 2015},
month = {Tue Apr 14 00:00:00 EDT 2015}
}

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Works referenced in this record:

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Works referencing / citing this record:

Perspective: Photonic flatbands
journal, July 2018

  • Leykam, Daniel; Flach, Sergej
  • APL Photonics, Vol. 3, Issue 7
  • DOI: 10.1063/1.5034365